arrow-finned squid vs Leatherback Sea Turtle

Illex oxygonius compared with Dermochelys coriacea

Key Differences

• arrow-finned squid is Least Concern while Leatherback Sea Turtle is Vulnerable.

Taxonomic Classification

Rank	arrow-finned squid	Leatherback Sea Turtle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Cephalopoda (Cephalopods)	Reptilia (Reptiles)
Order	Oegopsida (Oegopsida)	Testudines (Turtles & Tortoises)
Family	Ommastrephidae	Cheloniidae (Sea Turtles)
Genus	Illex	Chelonia (Green Sea Turtles)
Species	Illex oxygonius	Dermochelys coriacea

Evolutionary Relationship

arrow-finned squid and Leatherback Sea Turtle share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

arrow-finned squid

LC — Least Concern

Leatherback Sea Turtle

VU — Vulnerable

Population: ~35.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	arrow-finned squid	Leatherback Sea Turtle
Diet	—	Carnivore
Average Lifespan	—	50 years
Average Length	—	2.0 m
Average Weight	—	500.0 kg

Habitat & Geographic Range

arrow-finned squid

Leatherback Sea Turtle

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 5 distinct biome types spanning the Australasia and Indomalayan and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Costa Rica, Indonesia, Malaysia, and Trinidad and Tobago. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

arrow-finned squid

The Arrow-finned squid, Illex oxygonius, is a species. It is currently assessed as least concern on the IUCN Red List.

Leatherback Sea Turtle

The leatherback is the largest living turtle and the fourth-heaviest reptile. Unlike other turtles, it has a soft, leathery shell.